Mississippi River at Grafton
12 mi- Level
- 15.6 ft
- Flow
- 151,000 cfs
Forecast peak 15.7 ft Sat 7 AM
Reading from Sat 2 AM · NWS gauge page
Observed 3:10 AM CDT at KSET
Jerseyville, IL weather
Clear and 52°11°, 11°6° warmer than a typical Oct 24.
Today: low 48°9° (likely 48°9° to 50°10°), high 75°24° (likely 72°22° to 75°24°).
Now 52°11°
Clear
- Wind
- 5 mph7 km/h
- From the east-northeast. 35–6 mph10 km/h through 3 PM
- Dew point
- 46°8°
- Comfortable
- UV index
- 0Low
- Moderate 11 AM–4 PM · peak 4
- Pressure
- 30.28 inHg1025 hPa
- Rising slowly · +0.02 inHg+0.6 hPa in 3 h
Next 2 hours
No precipitation expected in the next 2 hours.
From forecast models
Next 48 hours
Good hours for
TonightNear 49°9° · Partly cloudy
This morningUp to 65°18° by 11 AM · Partly cloudy
This afternoonUp to 75°24° by 4 PM · Mostly cloudy
TonightDown to 50°10° by 4 AM · Partly cloudy
Tomorrow morningUp to 68°20° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 78°26° by 3 PM · Mostly cloudy
Tomorrow nightDown to 55°13° by 2 AM · Cloudy
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 3a | Clear | 50°10° (likely 50°10° to 54°12°) | 48°9° | 0% | 5 mph8 km/h from SE, gusts 11 mph18 km/h | 83% | 26% | 0 |
| Sat 4a | Partly cloudy | 49°9° (likely 49°9° to 52°11°) | 48°9° | 0% | 3 mph5 km/h from SE, gusts 11 mph17 km/h | 86% | 21% | 0 |
| Sat 5a | Partly cloudy | 48°9° (likely 48°9° to 52°11°) | 47°8° | 0% | 3 mph5 km/h from SE, gusts 9 mph15 km/h | 86% | 34% | 0 |
| Sat 6a | Mostly clear | 48°9° (likely 48°9° to 51°11°) | 47°8° | 0% | 3 mph5 km/h from SE, gusts 9 mph15 km/h | 86% | 27% | 0 |
| Sat 7a | Sunny | 48°9° (likely 48°9° to 50°10°) | 47°8° | 0% | 3 mph5 km/h from SE, gusts 9 mph14 km/h | 86% | 7% | 0 |
| Sat 8a | Sunny | 49°9° (likely 49°9° to 52°11°) | 47°8° | 0% | 5 mph8 km/h from SE, gusts 9 mph15 km/h | 86% | 13% | 0 |
| Sat 9a | Partly sunny | 54°12° (likely 54°12° to 56°13°) | 54°12° | 0% | 6 mph10 km/h from SE, gusts 9 mph14 km/h | 77% | 23% | 1 |
| Sat 10a | Partly sunny | 61°16° (likely 59°15° to 62°17°) | 61°16° | 0% | 6 mph10 km/h from SE, gusts 11 mph18 km/h | 60% | 57% | 2 |
| Sat 11a | Partly sunny | 65°18° (likely 64°18° to 67°19°) | 65°18° | 0% | 6 mph10 km/h from S, gusts 11 mph18 km/h | 50% | 73% | 3 |
| Sat 12p | Cloudy | 70°21° (likely 67°19° to 70°21°) | 70°21° | 0% | 6 mph10 km/h from S, gusts 10 mph16 km/h | 41% | 69% | 4 |
| Sat 1p | Cloudy | 72°22° (likely 70°21° to 73°23°) | 72°22° | 0% | 6 mph10 km/h from SE, gusts 9 mph14 km/h | 35% | 80% | 4 |
| Sat 2p | Partly sunny | 73°23° (likely 71°22° to 74°23°) | 73°23° | 0% | 5 mph8 km/h from SE, gusts 8 mph12 km/h | 34% | 75% | 4 |
| Sat 3p | Cloudy | 74°23° (likely 72°22° to 75°24°) | 74°23° | 0% | 5 mph8 km/h from SE, gusts 8 mph12 km/h | 33% | 78% | 3 |
| Sat 4p | Partly sunny | 75°24° (likely 71°22° to 75°24°) | 75°24° | 0% | 5 mph8 km/h from SE, gusts 8 mph13 km/h | 31% | 56% | 2 |
| Sat 5p | Partly sunny | 73°23° (likely 69°21° to 73°23°) | 73°23° | 0% | 5 mph8 km/h from SE, gusts 9 mph14 km/h | 34% | 64% | 1 |
| Sat 6p | Clear | 70°21° (likely 65°18° to 70°21°) | 70°21° | 0% | 3 mph5 km/h from SE, gusts 8 mph12 km/h | 38% | 40% | 0 |
| Sat 7p | Clear | 65°18° (likely 62°17° to 65°18°) | 65°18° | 0% | 3 mph5 km/h from SE, gusts 8 mph14 km/h | 48% | 40% | 0 |
| Sat 8p | Clear | 59°15° (likely 59°15° to 62°17°) | 59°15° | 0% | 3 mph5 km/h from SE, gusts 9 mph14 km/h | 62% | 44% | 0 |
| Sat 9p | Mostly clear | 58°14° (likely 58°14° to 61°16°) | 58°14° | 0% | 3 mph5 km/h from SE, gusts 10 mph15 km/h | 64% | 52% | 0 |
| Sat 10p | Partly cloudy | 56°13° (likely 56°13° to 60°16°) | 56°13° | 0% | 3 mph5 km/h from SE, gusts 11 mph17 km/h | 69% | 39% | 0 |
| Sat 11p | Partly cloudy | 55°13° (likely 55°13° to 59°15°) | 55°13° | 0% | 3 mph5 km/h from SE, gusts 11 mph18 km/h | 69% | 47% | 0 |
| Sun 12a | Partly cloudy | 54°12° (likely 54°12° to 58°14°) | 54°12° | 0% | 3 mph5 km/h from SE, gusts 11 mph18 km/h | 71% | 33% | 0 |
| Sun 1a | Clear | 54°12° (likely 54°12° to 57°14°) | 54°12° | 0% | 3 mph5 km/h from SE, gusts 11 mph17 km/h | 69% | 11% | 0 |
| Sun 2a | Clear | 52°11° (likely 52°11° to 56°13°) | 52°11° | 0% | 3 mph5 km/h from SE, gusts 10 mph16 km/h | 74% | 15% | 0 |
| Sun 3a | Clear | 51°11° (likely 51°11° to 55°13°) | 51°11° | 0% | 3 mph5 km/h from SE, gusts 10 mph15 km/h | 77% | 43% | 0 |
| Sun 4a | Clear | 50°10° (likely 50°10° to 55°13°) | 49°9° | 0% | 3 mph5 km/h from S, gusts 9 mph14 km/h | 80% | 40% | 0 |
| Sun 5a | Partly cloudy | 50°10° (likely 50°10° to 54°12°) | 50°10° | 0% | 2 mph3 km/h from SE, gusts 8 mph13 km/h | 80% | 49% | 0 |
| Sun 6a | Mostly clear | 49°9° (likely 49°9° to 54°12°) | 49°9° | 0% | 2 mph3 km/h from S, gusts 8 mph12 km/h | 83% | 64% | 0 |
| Sun 7a | Partly sunny | 48°9° (likely 48°9° to 53°12°) | 48°9° | 0% | 2 mph3 km/h from S, gusts 8 mph13 km/h | 86% | 53% | 0 |
| Sun 8a | Partly sunny | 50°10° (likely 49°9° to 53°12°) | 50°10° | 0% | 2 mph3 km/h from S, gusts 8 mph13 km/h | 83% | 60% | 0 |
| Sun 9a | Cloudy | 55°13° (likely 54°12° to 58°14°) | 55°13° | 0% | 3 mph5 km/h from SE, gusts 7 mph12 km/h | 77% | 75% | 1 |
| Sun 10a | Cloudy | 63°17° (likely 62°17° to 64°18°) | 63°17° | 0% | 3 mph5 km/h from S, gusts 9 mph14 km/h | 58% | 80% | 2 |
| Sun 11a | Cloudy | 68°20° (likely 66°19° to 70°21°) | 68°20° | 0% | 3 mph5 km/h from S, gusts 8 mph13 km/h | 49% | 80% | 3 |
| Sun 12p | Cloudy | 73°23° (likely 70°21° to 73°23°) | 73°23° | 0% | 3 mph5 km/h from S, gusts 7 mph11 km/h | 40% | 78% | 4 |
| Sun 1p | Cloudy | 75°24° (likely 73°23° to 76°24°) | 75°24° | 0% | 3 mph5 km/h from S, gusts 6 mph9 km/h | 36% | 67% | 4 |
| Sun 2p | Cloudy | 76°24° (likely 74°23° to 77°25°) | 76°24° | 0% | 3 mph5 km/h from S, gusts 5 mph9 km/h | 34% | 80% | 4 |
| Sun 3p | Cloudy | 78°26° (likely 74°23° to 78°26°) | 78°26° | 0% | 3 mph5 km/h from S, gusts 5 mph8 km/h | 31% | 80% | 3 |
| Sun 4p | Cloudy | 76°24° (likely 74°23° to 77°25°) | 76°24° | 0% | 3 mph5 km/h from S, gusts 5 mph8 km/h | 33% | 80% | 2 |
| Sun 5p | Cloudy | 76°24° (likely 72°22° to 76°24°) | 76°24° | 0% | 2 mph3 km/h from SE, gusts 6 mph9 km/h | 34% | 81% | 1 |
| Sun 6p | Cloudy | 72°22° (likely 67°19° to 72°22°) | 72°22° | 0% | 2 mph3 km/h from SE, gusts 5 mph8 km/h | 39% | 82% | 0 |
| Sun 7p | Cloudy | 65°18° (likely 64°18° to 68°20°) | 65°18° | 0% | 2 mph3 km/h from SE, gusts 6 mph9 km/h | 54% | 85% | 0 |
| Sun 8p | Cloudy | 62°17° (likely 62°17° to 65°18°) | 62°17° | 0% | 1 mph2 km/h from SE, gusts 6 mph10 km/h | 60% | 92% | 0 |
| Sun 9p | Cloudy | 60°16° (likely 60°16° to 64°18°) | 60°16° | 0% | 1 mph2 km/h from SE, gusts 7 mph12 km/h | 64% | 93% | 0 |
| Sun 10p | Cloudy | 58°14° (likely 58°14° to 63°17°) | 58°14° | 0% | 1 mph2 km/h from SE, gusts 8 mph12 km/h | 69% | 92% | 0 |
| Sun 11p | Cloudy | 57°14° (likely 57°14° to 63°17°) | 57°14° | 0% | 1 mph2 km/h from SE, gusts 8 mph12 km/h | 72% | 92% | 0 |
| Mon 12a | Cloudy | 57°14° (likely 57°14° to 62°17°) | 57°14° | 0% | 1 mph2 km/h from S, gusts 7 mph12 km/h | 69% | 91% | 0 |
| Mon 1a | Cloudy | 56°13° (likely 56°13° to 61°16°) | 56°13° | 0% | 1 mph2 km/h from S, gusts 6 mph10 km/h | 72% | 92% | 0 |
| Mon 2a | Cloudy | 55°13° (likely 55°13° to 61°16°) | 55°13° | 0% | 1 mph2 km/h from S, gusts 4 mph6 km/h | 74% | 93% | 0 |
Days ahead
Shaded: typical range for these dates (1991–2020)
Today, Oct 24. Cloudy. High 75°24°, low 48°9°. Typical 64°18° / 40°4°. Dry. Mostly agree.
Morning
6 AM–noon
Partly sunny, 49°9°Dry
Afternoon
noon–6 PM
Cloudy, 75°24°Dry
Evening
6 PM–midnight
Mostly clear, 59°15°Dry
Overnight
midnight–6 AM
Clear, 50°10°Dry
Official NWS forecast
Today: Mostly sunny, with a high near 75. Southeast wind around 6 mph.
Tonight: Partly cloudy, with a low around 48. Southeast wind around 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 72°22°–75°24°
- Low, likely
- 48°9°–50°10°
- Typical high / low
- 64°18° / 40°4°
- Wind
- 9 mph14 km/h, gusts 17 mph27 km/h
- UV peak
- 4
Tomorrow, Oct 25. Cloudy. High 78°26°, low 51°11°. Typical 63°17° / 40°4°. Dry. Mostly agree.
Morning
6 AM–noon
Cloudy, 50°10°Dry
Afternoon
noon–6 PM
Cloudy, 78°26°Dry
Evening
6 PM–midnight
Cloudy, 62°17°Dry
Overnight
midnight–6 AM
Cloudy, 55°13°Dry
Official NWS forecast
Day: Mostly sunny, with a high near 78. South wind around 3 mph.
Night: Mostly cloudy, with a low around 51. South wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 74°23°–78°26°
- Low, likely
- 49°9°–53°12°
- Typical high / low
- 63°17° / 40°4°
- Wind
- 7 mph12 km/h, gusts 16 mph26 km/h
- UV peak
- 4
Monday, Oct 26. Cloudy. High 76°24°, low 50°10°. Typical 62°17° / 40°4°. Dry. Forecasts agree.
Morning
6 AM–noon
Cloudy, 55°13°Dry
Afternoon
noon–6 PM
Cloudy, 75°24°Dry
Evening
6 PM–midnight
Clear, 62°17°Dry
Overnight
midnight–6 AM
Cloudy, 54°12°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 76.
Night: Mostly cloudy, with a low around 50.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 74°23°–76°24°
- Low, likely
- 50°10°–56°13°
- Typical high / low
- 62°17° / 40°4°
- Wind
- 7 mph11 km/h
- UV peak
- 4
Tuesday, Oct 27. Cloudy. High 74°23°, low 51°11°. Typical 62°17° / 40°4°. Dry. Mostly agree.
Morning
6 AM–noon
Cloudy, 55°13°Dry
Afternoon
noon–6 PM
Cloudy, 72°22°Dry
Evening
6 PM–midnight
Cloudy, 63°17°Dry
Overnight
midnight–6 AM
Cloudy, 55°13°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly cloudy, with a high near 74.
Night: Mostly cloudy, with a low around 51.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 70°21°–74°23°
- Low, likely
- 49°9°–57°14°
- Typical high / low
- 62°17° / 40°4°
- Wind
- 10 mph16 km/h, gusts 22 mph35 km/h
- UV peak
- 3
Wednesday, Oct 28. Cloudy. High 78°26°, low 52°11°. Typical 62°17° / 39°4°. Dry. Forecasts agree.
Morning
6 AM–noon
Partly sunny, 57°14°Dry
Afternoon
noon–6 PM
Partly sunny, 75°24°Dry
Evening
6 PM–midnight
Clear, 65°18°Dry
Overnight
midnight–6 AM
Clear, 56°13°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 78.
Night: Mostly clear, with a low around 52.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 74°23°–78°26°
- Low, likely
- 52°11°–55°13°
- Typical high / low
- 62°17° / 39°4°
- Wind
- 11 mph17 km/h, gusts 20 mph32 km/h
- UV peak
- 4
Thursday, Oct 29. Mostly sunny. High 77°25°, low 50°10°. Typical 61°16° / 39°4°. Dry. Forecasts differ.
Morning
6 AM–noon
Partly sunny, 58°15°Dry
Afternoon
noon–6 PM
Partly sunny, 76°24°Dry
Evening
6 PM–midnight
Partly cloudy, 64°18°Dry
Overnight
midnight–6 AM
Clear, 57°14°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 77.
Night: Partly cloudy, with a low around 50.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 73°23°–80°27°
- Low, likely
- 50°10°–58°14°
- Typical high / low
- 61°16° / 39°4°
- Wind
- 13 mph21 km/h, gusts 25 mph40 km/h
- UV peak
- 4
Friday, Oct 30. Cloudy. High 75°24°, low 57°14°. Typical 60°16° / 38°3°. Dry. Mostly agree.
Morning
6 AM–noon
Cloudy, 60°15°Dry
Afternoon
noon–6 PM
Cloudy, 77°25°Dry
Evening
6 PM–midnight
Cloudy, 67°19°Dry
Overnight
midnight–6 AM
Cloudy, 60°16°20% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 75.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 75°24°–79°26°
- Low, likely
- 55°13°–60°16°
- Typical high / low
- 60°16° / 38°3°
- Wind
- 10 mph16 km/h, gusts 20 mph31 km/h
- UV peak
- 4
Saturday, Oct 31. Cloudy. High 73°23°, low 60°16°. Typical 60°16° / 38°3°. Rain 0.16 in4.1 mm, 40% chance. Forecasts differ.
Morning
6 AM–noon
Partly sunny, 64°18°30% chance
Afternoon
noon–6 PM
Drizzle, 75°24°30% chance
Evening
6 PM–midnight
Rain, 66°19°40% chance · 0.08 in2.1 mm
Overnight
midnight–6 AM
Drizzle, 63°17°40% chance · 0.01 in0.3 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 69°21°–81°27°
- Low, likely
- 57°14°–62°17°
- Typical high / low
- 60°16° / 38°3°
- Wind
- 14 mph22 km/h, gusts 33 mph53 km/h
Sunday, Nov 1. Drizzle. High 72°22°, low 62°17°. Typical 60°16° / 38°3°. Rain 0.27 in6.9 mm, 40% chance. Mostly agree.
Morning
6 AM–noon
Partly sunny, 63°17°40% chance · 0.05 in1.2 mm
Afternoon
noon–6 PM
Drizzle, 71°22°40% chance · 0.06 in1.5 mm
Evening
6 PM–midnight
Drizzle, 66°19°40% chance · 0.08 in2.1 mm
Overnight
midnight–6 AM
Drizzle, 57°14°40% chance · 0.09 in2.4 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 69°21°–76°24°
- Low, likely
- 55°13°–64°18°
- Typical high / low
- 60°16° / 38°3°
- Wind
- 21 mph34 km/h, gusts 39 mph63 km/h
- UV peak
- 3
Monday, Nov 2. Rain. High 67°19°, low 55°13°. Typical 59°15° / 38°3°. Rain 0.27 in6.9 mm, 40% chance. Mostly agree.
Morning
6 AM–noon
Cloudy, 59°15°30% chance · 0.06 in1.5 mm
Afternoon
noon–6 PM
Cloudy, 60°16°30% chance · 0.07 in1.7 mm
Evening
6 PM–midnight
Cloudy, 59°15°20% chance · 0.06 in1.5 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 64°18°–70°21°
- Low, likely
- 51°11°–58°14°
- Typical high / low
- 59°15° / 38°3°
- Wind
- 15 mph24 km/h, gusts 39 mph63 km/h
- UV peak
- 3
The outlook
Today
Dry, high 75°, low 48°.
Tomorrow
Dry, high 78°, low 51°, warming up.
Monday
Dry, high 76°, low 50°.
Rest of week
Highs 67–78°; chance of precipitation on Sunday.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (LSX) (opens in a new tab)
What changed since yesterday
No meaningful changes from yesterday’s forecast.
Radar
Radar data: NOAA MRMS, rendered by forecast.blue
Radar loads when scrolled into view
Rivers
NOAA river gauges within 25 mi
Below flood stage
Illinois River at Hardin
16 mi- Level
- 19.8 ft
- Flow
- 17,300 cfs
Forecast peak 19.7 ft Sat 7 AM
Reading from Sat 2 AM · NWS gauge page
Mississippi River at Mel Price (Alton) Lock and Dam
20 mi- Level
- 7.7 ft
- Flow
- 124,000 cfs
Forecast peak 7.6 ft Sat 7 AM
Reading from Sat 2 AM · NWS gauge page
Mississippi River at Winfield Lock and Dam 25
21 mi- Level
- 17.9 ft
- Flow
- 93,300 cfs
Forecast peak 18.0 ft Sat 7 AM
Reading from Sat 2 AM · NWS gauge page
For your home
What this week’s weather means for heating, cooling, pipes and fresh air.
Heating this week
About 87% less heating than a typical week.
This week 13Typical 100
Heating degree days, base 65°F
Comfort
Dry air outside (dew point 46°F).
Open the windows?
Today, 10:00 AM–7:00 PM
Good stretch to open the windows (air quality forecast not available for part of this window).
Is this typical?
Jerseyville 2 SW · official normals 1991–2020 · records 1940–2026
Oct 24, today vs a typical year
Today’s expected high is 11°6° warmer than typical.
- Normal high / low
- 64°18° / 40°4°
- Forecast high / low
- 75°24° / 48°9°
- Record high
- 83°28° in 1963
- Record low
- 17°−8° in 1981
Last 7 days vs normal
On average 3°1° warmer than normal (daily mean temperature).
- −3°−2°SunOct 18
- −3°−2°MonOct 19
- +1°±0°TueOct 20
- +6°+3°WedOct 21
- +8°+4°ThuOct 22
- +8°+4°FriOct 23
- —SatOct 24
Jerseyville weather by month: normals, records, snow and freeze dates
Sun & moon
Sun
Sunrise 7:20 AM, sunset 6:10 PM.
- Daylight
- 10 h 50 min
- Losing 2 min 21 s a day; shortest Dec 21, 1 h 25 min less
- Golden hour
- 5:33–6:26 PM
- Morning 7:03–7:57 AM
- Blue hour
- 6:26–6:37 PM
- Morning 6:53–7:03 AM; first light 6:53 AM
Stars tonight? Poor
Clouds most of the night (about 27% cover).
Moon
Waxing gibbous
96% lit · growing
- Today
- sets 5:35 AM · rises 5:07 PM
- Full moon
- Oct 25
- New moon
- Nov 9
