Kaskaskia River at Vandalia
21 mi- Level
- 2.8 ft
- Flow
- 93 cfs
Reading from Sat 3:30 PM · NWS gauge page
Observed 3:50 PM CDT at KALN
Donnellson, IL weather
Sunny and 75°24°, 8°4° warmer than a typical Oct 24, jacket by 9 PM.
Today: low 46°8° (likely 45°7° to 46°8°), high 74°23° (likely 73°23° to 75°24°).
Now 75°24°
Sunny
- Wind
- 5 mph8 km/h
- From the east. Light through 5 AM
- Dew point
- 43°6°
- Comfortable
- UV tomorrow
- 4Moderate
- Moderate 11 AM–4 PM · peak 4
Next 2 hours
No precipitation expected in the next 2 hours.
From forecast models
Next 48 hours
Good hours for
TonightDown to 47°8° by 5 AM · Clear
Tomorrow morningUp to 67°19° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 76°24° by 3 PM · Mostly cloudy
Tomorrow nightDown to 51°11° by 4 AM · Mostly cloudy
Monday morningUp to 69°21° by 11 AM · Mostly cloudy
Monday afternoonUp to 77°25° by 3 PM · Mostly cloudy
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 5p | Partly sunny | 72°22° (likely 68°20° to 73°23°) | 72°22° | 0% | 3 mph5 km/h from SE, gusts 8 mph13 km/h | 35% | 37% | 0 |
| Sat 6p | Clear | 67°19° (likely 63°17° to 68°20°) | 67°19° | 0% | 2 mph3 km/h from SE, gusts 8 mph12 km/h | 43% | 21% | 0 |
| Sat 7p | Clear | 61°16° (likely 60°16° to 64°18°) | 61°16° | 0% | 2 mph3 km/h from SE, gusts 6 mph10 km/h | 56% | 8% | 0 |
| Sat 8p | Clear | 57°14° (likely 57°14° to 61°16°) | 57°14° | 0% | 2 mph3 km/h from SE, gusts 8 mph12 km/h | 64% | 2% | 0 |
| Sat 9p | Clear | 55°13° (likely 55°13° to 59°15°) | 55°13° | 0% | 2 mph3 km/h from SE, gusts 8 mph13 km/h | 69% | 2% | 0 |
| Sat 10p | Mostly clear | 54°12° (likely 54°12° to 58°14°) | 54°12° | 0% | 2 mph3 km/h from SE, gusts 9 mph14 km/h | 74% | 15% | 0 |
| Sat 11p | Clear | 52°11° (likely 52°11° to 57°14°) | 52°11° | 0% | 2 mph3 km/h from SE, gusts 9 mph15 km/h | 80% | 36% | 0 |
| Sun 12a | Mostly clear | 51°11° (likely 51°11° to 55°13°) | 51°11° | 0% | 2 mph3 km/h from SE, gusts 8 mph13 km/h | 80% | 19% | 0 |
| Sun 1a | Clear | 50°10° (likely 50°10° to 54°12°) | 50°10° | 0% | 2 mph3 km/h from SE, gusts 7 mph11 km/h | 83% | 1% | 0 |
| Sun 2a | Clear | 49°9° (likely 49°9° to 53°12°) | 49°9° | 0% | 2 mph3 km/h from SE, gusts 7 mph11 km/h | 86% | 11% | 0 |
| Sun 3a | Partly cloudy | 48°9° (likely 48°9° to 52°11°) | 48°9° | 0% | 2 mph3 km/h from SE, gusts 7 mph12 km/h | 89% | 27% | 0 |
| Sun 4a | Partly cloudy | 48°9° (likely 48°9° to 51°11°) | 48°9° | 0% | 2 mph3 km/h from SE, gusts 6 mph10 km/h | 86% | 56% | 0 |
| Sun 5a | Partly cloudy | 47°8° (likely 47°8° to 50°10°) | 47°8° | 0% | 1 mph2 km/h from SE, gusts 6 mph9 km/h | 89% | 75% | 0 |
| Sun 6a | Partly cloudy | 47°8° (likely 47°8° to 50°10°) | 47°8° | 0% | 1 mph2 km/h from SE, gusts 5 mph9 km/h | 93% | 68% | 0 |
| Sun 7a | Partly sunny | 46°8° (likely 46°8° to 50°10°) | 46°8° | 0% | 1 mph2 km/h from SE, gusts 6 mph9 km/h | 93% | 61% | 0 |
| Sun 8a | Partly sunny | 48°9° (likely 47°8° to 51°11°) | 48°9° | 0% | 1 mph2 km/h from SE, gusts 5 mph9 km/h | 93% | 61% | 0 |
| Sun 9a | Partly sunny | 56°13° (likely 54°12° to 56°13°) | 56°13° | 0% | 1 mph2 km/h from SE, gusts 5 mph9 km/h | 74% | 81% | 1 |
| Sun 10a | Cloudy | 62°17° (likely 61°16° to 63°17°) | 62°17° | 0% | 2 mph3 km/h from S, gusts 8 mph14 km/h | 62% | 78% | 2 |
| Sun 11a | Sunny | 67°19° (likely 65°18° to 70°21°) | 67°19° | 0% | 3 mph5 km/h from S, gusts 8 mph13 km/h | 52% | 47% | 3 |
| Sun 12p | Partly sunny | 71°22° (likely 69°21° to 74°23°) | 71°22° | 0% | 3 mph5 km/h from S, gusts 7 mph11 km/h | 44% | 46% | 4 |
| Sun 1p | Cloudy | 73°23° (likely 72°22° to 76°24°) | 73°23° | 0% | 3 mph5 km/h from S, gusts 6 mph10 km/h | 41% | 75% | 4 |
| Sun 2p | Cloudy | 75°24° (likely 73°23° to 78°26°) | 75°24° | 0% | 3 mph5 km/h from S, gusts 6 mph9 km/h | 37% | 81% | 4 |
| Sun 3p | Cloudy | 76°24° (likely 73°23° to 78°26°) | 76°24° | 0% | 3 mph5 km/h from S, gusts 5 mph9 km/h | 36% | 81% | 3 |
| Sun 4p | Cloudy | 76°24° (likely 73°23° to 78°26°) | 76°24° | 0% | 2 mph3 km/h from S, gusts 6 mph9 km/h | 36% | 81% | 2 |
| Sun 5p | Cloudy | 74°23° (likely 70°21° to 76°24°) | 74°23° | 0% | 1 mph2 km/h from S, gusts 6 mph10 km/h | 38% | 80% | 1 |
| Sun 6p | Cloudy | 69°21° (likely 65°18° to 71°22°) | 69°21° | 0% | 2 mph3 km/h from SE, gusts 5 mph9 km/h | 45% | 80% | 0 |
| Sun 7p | Cloudy | 63°17° (likely 62°17° to 67°19°) | 63°17° | 0% | 1 mph2 km/h from SE, gusts 6 mph9 km/h | 58% | 80% | 0 |
| Sun 8p | Cloudy | 59°15° (likely 59°15° to 64°18°) | 59°15° | 0% | 1 mph2 km/h from SE, gusts 6 mph9 km/h | 64% | 80% | 0 |
| Sun 9p | Cloudy | 57°14° (likely 57°14° to 63°17°) | 57°14° | 0% | 1 mph2 km/h from SE, gusts 6 mph10 km/h | 72% | 81% | 0 |
| Sun 10p | Cloudy | 56°13° (likely 56°13° to 62°17°) | 56°13° | 0% | 1 mph2 km/h from SE, gusts 6 mph10 km/h | 72% | 81% | 0 |
| Sun 11p | Cloudy | 55°13° (likely 55°13° to 60°16°) | 55°13° | 0% | 1 mph2 km/h from S, gusts 7 mph12 km/h | 74% | 81% | 0 |
| Mon 12a | Cloudy | 54°12° (likely 54°12° to 59°15°) | 54°12° | 0% | 1 mph2 km/h from S, gusts 8 mph12 km/h | 80% | 81% | 0 |
| Mon 1a | Cloudy | 53°12° (likely 53°12° to 58°14°) | 53°12° | 0% | 1 mph2 km/h from S, gusts 8 mph13 km/h | 83% | 81% | 0 |
| Mon 2a | Cloudy | 52°11° (likely 52°11° to 56°13°) | 52°11° | 0% | 1 mph2 km/h from S, gusts 8 mph13 km/h | 86% | 91% | 0 |
| Mon 3a | Cloudy | 52°11° (likely 52°11° to 56°13°) | 52°11° | 0% | 1 mph2 km/h from S, gusts 8 mph13 km/h | 83% | 92% | 0 |
| Mon 4a | Cloudy | 51°11° (likely 51°11° to 55°13°) | 51°11° | 0% | 1 mph2 km/h from S, gusts 7 mph12 km/h | 86% | 91% | 0 |
| Mon 5a | Cloudy | 51°11° (likely 51°11° to 54°12°) | 51°11° | 0% | 1 mph2 km/h from S, gusts 7 mph11 km/h | 86% | 83% | 0 |
| Mon 6a | Cloudy | 50°10° (likely 50°10° to 53°12°) | 50°10° | 0% | 1 mph2 km/h from S, gusts 7 mph11 km/h | 89% | 83% | 0 |
| Mon 7a | Cloudy | 49°9° (likely 49°9° to 53°12°) | 49°9° | 0% | 1 mph2 km/h from SW, gusts 7 mph11 km/h | 89% | 83% | 0 |
| Mon 8a | Cloudy | 51°11° (likely 51°11° to 55°13°) | 51°11° | 0% | 1 mph2 km/h from S, gusts 6 mph10 km/h | 89% | 91% | 0 |
| Mon 9a | Cloudy | 57°14° (likely 57°14° to 59°15°) | 57°14° | 0% | 0 mph0 km/h, gusts 6 mph10 km/h | 75% | 73% | 1 |
| Mon 10a | Cloudy | 64°18° (likely 64°18° to 65°18°) | 64°18° | 0% | 0 mph0 km/h, gusts 10 mph15 km/h | 60% | 82% | 2 |
| Mon 11a | Cloudy | 69°21° (likely 67°19° to 70°21°) | 69°21° | 0% | 1 mph2 km/h from SW, gusts 10 mph17 km/h | 53% | 81% | 3 |
| Mon 12p | Cloudy | 72°22° (likely 70°21° to 74°23°) | 72°22° | 0% | 1 mph2 km/h from SW, gusts 10 mph15 km/h | 48% | 83% | 3 |
| Mon 1p | Cloudy | 74°23° (likely 73°23° to 76°24°) | 74°23° | 0% | 2 mph3 km/h from SW, gusts 9 mph14 km/h | 43% | 84% | 4 |
| Mon 2p | Mostly cloudy | 76°24° (likely 74°23° to 78°26°) | 76°24° | 0% | 2 mph3 km/h from SW, gusts 9 mph14 km/h | 40% | 76% | 3 |
| Mon 3p | Mostly cloudy | 77°25° (likely 74°23° to 78°26°) | 77°25° | 0% | 2 mph3 km/h from SW, gusts 9 mph14 km/h | 37% | 59% | 3 |
| Mon 4p | Mostly cloudy | 76°24° (likely 73°23° to 77°25°) | 76°24° | 0% | 2 mph3 km/h from SW, gusts 8 mph13 km/h | 39% | 53% | 2 |
Days ahead
Shaded: typical range for these dates (1991–2020)
Today, Oct 24. Cloudy. High 74°23°, low 46°8°. Typical 66°19° / 43°6°. Dry. Mostly agree.
Evening
6 PM–midnight
Clear, 57°14°Dry
Overnight
midnight–6 AM
Partly cloudy, 47°8°Dry
Official NWS forecast
Today: Mostly sunny, with a high near 74. Southeast wind around 3 mph.
Tonight: Mostly clear, with a low around 46. Southeast wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 73°23°–75°24°
- Low, likely
- 45°7°–46°8°
- Typical high / low
- 66°19° / 43°6°
- Wind
- 7 mph11 km/h, gusts 14 mph22 km/h
- UV peak
- 4
Tomorrow, Oct 25. Cloudy. High 76°24°, low 49°9°. Typical 65°18° / 43°6°. Dry. Mostly agree.
Morning
6 AM–noon
Partly sunny, 48°9°Dry
Afternoon
noon–6 PM
Cloudy, 76°24°Dry
Evening
6 PM–midnight
Cloudy, 59°15°Dry
Overnight
midnight–6 AM
Cloudy, 51°11°Dry
Official NWS forecast
Day: Mostly sunny, with a high near 76. Southeast wind around 3 mph.
Night: Mostly cloudy, with a low around 49. South wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 73°23°–78°26°
- Low, likely
- 46°8°–50°10°
- Typical high / low
- 65°18° / 43°6°
- Wind
- 7 mph10 km/h
- UV peak
- 4
Monday, Oct 26. Cloudy. High 77°25°, low 48°9°. Typical 65°18° / 42°6°. Dry. Mostly agree.
Morning
6 AM–noon
Cloudy, 51°11°Dry
Afternoon
noon–6 PM
Mostly cloudy, 77°25°Dry
Evening
6 PM–midnight
Partly cloudy, 62°16°Dry
Overnight
midnight–6 AM
Cloudy, 52°11°Dry
Official NWS forecast
Day: Partly sunny. High near 77, with temperatures falling to around 73 in the afternoon. Southwest wind around 2 mph.
Night: Partly cloudy, with a low around 48.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 74°23°–77°25°
- Low, likely
- 48°9°–53°12°
- Typical high / low
- 65°18° / 42°6°
- Wind
- 7 mph10 km/h, gusts 13 mph20 km/h
- UV peak
- 4
Tuesday, Oct 27. Cloudy. High 75°24°, low 50°10°. Typical 64°18° / 42°6°. Dry. Mostly agree.
Morning
6 AM–noon
Cloudy, 53°12°Dry
Afternoon
noon–6 PM
Cloudy, 72°22°Dry
Evening
6 PM–midnight
Cloudy, 61°16°Dry
Overnight
midnight–6 AM
Clear, 52°11°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 75.
Night: Mostly cloudy, with a low around 50.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 70°21°–75°24°
- Low, likely
- 49°9°–55°13°
- Typical high / low
- 64°18° / 42°6°
- Wind
- 9 mph15 km/h, gusts 17 mph28 km/h
- UV peak
- 3
Wednesday, Oct 28. Partly sunny. High 79°26°, low 52°11°. Typical 64°18° / 42°6°. Dry. Mostly agree.
Morning
6 AM–noon
Sunny, 55°13°Dry
Afternoon
noon–6 PM
Sunny, 77°25°Dry
Evening
6 PM–midnight
Clear, 64°18°Dry
Overnight
midnight–6 AM
Clear, 55°13°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 79.
Night: Mostly clear, with a low around 52.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 74°23°–79°26°
- Low, likely
- 49°9°–54°12°
- Typical high / low
- 64°18° / 42°6°
- Wind
- 11 mph17 km/h, gusts 19 mph31 km/h
- UV peak
- 4
Thursday, Oct 29. Mostly sunny. High 81°27°, low 53°12°. Typical 63°17° / 41°5°. Dry. Mostly agree.
Morning
6 AM–noon
Sunny, 57°14°Dry
Afternoon
noon–6 PM
Sunny, 80°26°Dry
Evening
6 PM–midnight
Clear, 66°19°Dry
Overnight
midnight–6 AM
Clear, 56°13°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 81.
Night: Mostly clear, with a low around 53.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 77°25°–81°27°
- Low, likely
- 52°11°–57°14°
- Typical high / low
- 63°17° / 41°5°
- Wind
- 13 mph21 km/h, gusts 25 mph40 km/h
- UV peak
- 4
Friday, Oct 30. Cloudy. High 80°27°, low 56°13°. Typical 63°17° / 41°5°. Dry. Mostly agree.
Morning
6 AM–noon
Partly sunny, 58°14°Dry
Afternoon
noon–6 PM
Partly sunny, 78°25°Dry
Evening
6 PM–midnight
Cloudy, 65°18°Dry
Overnight
midnight–6 AM
Cloudy, 57°14°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 80.
Night: Mostly cloudy, with a low around 56.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 74°23°–80°27°
- Low, likely
- 52°11°–58°14°
- Typical high / low
- 63°17° / 41°5°
- Wind
- 13 mph21 km/h, gusts 22 mph35 km/h
- UV peak
- 3
Saturday, Oct 31. Drizzle. High 72°22°, low 58°14°. Typical 62°17° / 41°5°. Rain 0.09 in2.3 mm, 50% chance. Forecasts differ.
Morning
6 AM–noon
Cloudy, 59°15°30% chance
Afternoon
noon–6 PM
Cloudy, 73°23°40% chance
Evening
6 PM–midnight
Drizzle, 66°19°50% chance · 0.05 in1.1 mm
Overnight
midnight–6 AM
Drizzle, 62°17°50% chance · 0.11 in2.8 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
- 67°19°–77°25°
- Low, likely
- 54°12°–61°16°
- Typical high / low
- 62°17° / 41°5°
- Wind
- 17 mph28 km/h, gusts 24 mph38 km/h
- UV peak
- 1
Sunday, Nov 1. Drizzle. High 74°23°, low 61°16°. Typical 62°17° / 40°4°. Rain 0.35 in8.9 mm, 50% chance. Forecasts differ.
Morning
6 AM–noon
Drizzle, 64°18°50% chance · 0.02 in0.5 mm
Afternoon
noon–6 PM
Cloudy, 74°24°30% chance
Evening
6 PM–midnight
Drizzle, 67°20°30% chance · 0.16 in4.2 mm
Overnight
midnight–6 AM
Drizzle, 52°11°30% chance · 0.09 in2.3 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
- 71°22°–78°26°
- Low, likely
- 58°14°–62°17°
- Typical high / low
- 62°17° / 40°4°
- Wind
- 18 mph30 km/h, gusts 40 mph64 km/h
- UV peak
- 3
Monday, Nov 2. Drizzle. High 66°19°, low 51°11°. Typical 61°16° / 40°4°. Rain 0.3 in7.6 mm, 40% chance. Forecasts differ.
Morning
6 AM–noon
Drizzle, 53°12°30% chance · 0.03 in0.7 mm
Afternoon
noon–6 PM
Drizzle, 57°14°40% chance · 0.07 in1.9 mm
Evening
6 PM–midnight
Drizzle, 53°12°40% chance · 0.14 in3.6 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
- 55°13°–77°25°
- Low, likely
- 37°3°–64°18°
- Typical high / low
- 61°16° / 40°4°
- Wind
- 23 mph37 km/h, gusts 40 mph64 km/h
- UV peak
- 1
The outlook
Today
Dry, high 74°, low 46°.
Tomorrow
Dry, high 76°, low 49°.
Monday
Dry, high 77°, low 48°.
Rest of week
Highs 66–81°; chance of precipitation on Saturday, 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
For your home
What this week’s weather means for heating, cooling, pipes and fresh air.
Heating this week
About 81% less heating than a typical week.
This week 16Typical 83
Heating degree days, base 65°F
Heat-pump hours, next 7 days
- h below 47°F
- 3
- h below 17°F
- 0
- h below 5°F
- 0
47, 17 and 5°F are the test points heat pumps are rated at.
Comfort
Dry air outside (dew point 44°F).
Open the windows?
Today, 6:00 PM–7:00 PM
Good stretch to open the windows (air quality forecast not available for part of this window).
Is this typical?
Hillsboro · official normals 1991–2020 · records 1895–2026
Oct 24, today vs a typical year
Today’s expected high is 8°4° warmer than typical.
- Normal high / low
- 66°19° / 43°6°
- Forecast high / low
- 74°23° / 46°8°
- Record high
- 82°28° in 1934
- Record low
- 20°−7° in 1981
Last 7 days vs normal
On average 1° warmer than normal (daily mean temperature).
- −7°−4°SunOct 18
- −3°−2°MonOct 19
- +2°+1°TueOct 20
- +5°+3°WedOct 21
- +4°+2°ThuOct 22
- +6°+3°FriOct 23
- —SatOct 24
Donnellson weather by month: normals, records, snow and freeze dates
Sun & moon
Sun
Sunrise 7:16 AM, sunset 6:06 PM.
- Daylight
- 10 h 50 min
- Losing 2 min 21 s a day; shortest Dec 21, 1 h 24 min less
- Golden hour
- 5:29–6:23 PM
- Morning 7:00–7:53 AM
- Blue hour
- 6:23–6:34 PM
- Morning 6:49–7:00 AM; first light 6:49 AM
Stars tonight? Fair
Mostly clear 6:34–11 PM, but the moon is 99% lit and up.
Moon
Waxing gibbous
98% lit · growing
- Today
- sets 5:31 AM · rises 5:04 PM
- Full moon
- Oct 25
- New moon
- Nov 9
