Marias River at Tiber Reservoir / Lake Elwell
15 mi- Level
- 2986 ft
Reading from Sat 5 PM · NWS gauge page
Model estimate for 6:00 PM MDT (no recent station report)
Chester, MT weather
Partly cloudy and 41°5°, 52°29° colder than usual, freeze watch tonight, low 24°−4°.
Today: low 24°−4°, high 0°−18°.
Now 41°5°
Partly cloudy · Feels like 37°3°
- Wind
- 6 mph10 km/h
- From the east-southeast. 610–13 mph21 km/h through 6 AM
- Dew point
- 27°−3°
- Dry, static shocks likely
Next 48 hours
Good hours for
TonightDown to 26°−3° by 5 AM · freezing, low 26°−3°
Tomorrow morningUp to 35°2° by 11 AM · freezing, low 24°−4°
Tomorrow afternoonUp to 45°7° by 4 PM
Tomorrow nightDown to 25°−4° by 5 AM · freezing, low 25°−4°
Monday morningUp to 38°3° by 11 AM · freezing, low 24°−4°
Monday afternoonUp to 48°9° by 3 PM
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 6p | Partly cloudy | 41°5° (likely 37°3° to 41°5°) | 37°3° | 0% | 6 mph10 km/h from ESE | 58% | — | — |
| Sat 7p | Mostly cloudy | 38°3° (likely 35°2° to 38°3°) | 34°1° | 0% | 6 mph10 km/h from E | 66% | — | — |
| Sat 8p | Mostly cloudy | 34°1° (likely 34°1° to 34°1°) | 28°−2° | 0% | 7 mph11 km/h from ENE | 72% | — | — |
| Sat 9p | Mostly cloudy | 34°1° (likely 34°1° to 34°1°) | 27°−3° | 0% | 8 mph13 km/h from ENE | 72% | — | — |
| Sat 10p | Mostly cloudy | 33°1° (likely 33°1° to 34°1°) | 25°−4° | 0% | 9 mph14 km/h from ENE | 73% | — | — |
| Sat 11p | Mostly cloudy | 32°0° (likely 32°0° to 34°1°) | 24°−4° | 0% | 10 mph16 km/h from ENE | 73% | — | — |
| Sun 12a | Mostly cloudy | 31°−1° (likely 31°−1° to 33°1°) | 22°−6° | 0% | 12 mph19 km/h from ENE | 74% | — | — |
| Sun 1a | Mostly cloudy | 30°−1° (likely 30°−1° to 32°0°) | 20°−7° | 0% | 12 mph19 km/h from NE | 75% | — | — |
| Sun 2a | Partly cloudy | 29°−2° (likely 29°−2° to 32°0°) | 19°−7° | 0% | 12 mph19 km/h from NE | 76% | — | — |
| Sun 3a | Partly cloudy | 28°−2° (likely 28°−2° to 31°−1°) | 17°−8° | 0% | 13 mph21 km/h from NE | 78% | — | — |
| Sun 4a | Partly cloudy | 27°−3° (likely 27°−3° to 30°−1°) | 16°−9° | 0% | 13 mph21 km/h from NE | 79% | — | — |
| Sun 5a | Partly cloudy | 26°−3° (likely 26°−3° to 29°−2°) | 15°−9° | 0% | 13 mph21 km/h from NE | 80% | — | — |
| Sun 6a | Partly cloudy | 25°−4° (likely 25°−4° to 28°−2°) | 14°−10° | 0% | 12 mph19 km/h from ENE | 81% | — | — |
| Sun 7a | Partly cloudy | 25°−4° (likely 25°−4° to 28°−2°) | 14°−10° | 0% | 13 mph21 km/h from ENE | 83% | — | — |
| Sun 8a | Partly sunny | 24°−4° (likely 24°−4° to 27°−3°) | 13°−11° | 0% | 12 mph19 km/h from ENE | 84% | — | — |
| Sun 9a | Partly sunny | 26°−3° (likely 26°−3° to 28°−2°) | 15°−9° | 0% | 12 mph19 km/h from ENE | 84% | — | — |
| Sun 10a | Mostly sunny | 31°−1° (likely 31°−1° to 31°−1°) | 22°−6° | 0% | 12 mph19 km/h from ENE | 75% | — | — |
| Sun 11a | Mostly sunny | 35°2° (likely 33°1° to 35°2°) | 27°−3° | 0% | 12 mph19 km/h from ENE | 68% | — | — |
| Sun 12p | Partly sunny | 38°3° (likely 35°2° to 38°3°) | 31°−1° | 0% | 12 mph19 km/h from ENE | 62% | — | — |
| Sun 1p | Mostly sunny | 42°6° (likely 37°3° to 42°6°) | 36°2° | 0% | 12 mph19 km/h from E | 57% | — | — |
| Sun 2p | Mostly sunny | 43°6° (likely 38°3° to 43°6°) | 37°3° | 0% | 12 mph19 km/h from E | 53% | — | — |
| Sun 3p | Partly sunny | 44°7° (likely 39°4° to 44°7°) | 38°3° | 0% | 12 mph19 km/h from E | 50% | — | — |
| Sun 4p | Partly sunny | 45°7° (likely 40°4° to 45°7°) | 40°4° | 0% | 10 mph16 km/h from E | 50% | — | — |
| Sun 5p | Partly sunny | 44°7° (likely 39°4° to 44°7°) | 38°3° | 0% | 12 mph19 km/h from E | 50% | — | — |
| Sun 6p | Mostly cloudy | 40°4° (likely 36°2° to 40°4°) | 33°1° | 0% | 10 mph16 km/h from ENE | 58% | — | — |
| Sun 7p | Mostly cloudy | 38°3° (likely 34°1° to 38°3°) | 31°−1° | 0% | 10 mph16 km/h from ENE | 65% | — | — |
| Sun 8p | Mostly cloudy | 34°1° (likely 33°1° to 34°1°) | 26°−3° | 0% | 10 mph16 km/h from ENE | 71% | — | — |
| Sun 9p | Mostly cloudy | 33°1° (likely 33°1° to 33°1°) | 25°−4° | 0% | 9 mph14 km/h from ENE | 74% | — | — |
| Sun 10p | Mostly cloudy | 31°−1° (likely 31°−1° to 32°0°) | 23°−5° | 0% | 9 mph14 km/h from ENE | 77% | — | — |
| Sun 11p | Mostly cloudy | 30°−1° (likely 30°−1° to 32°0°) | 22°−6° | 0% | 9 mph14 km/h from ENE | 78% | — | — |
| Mon 12a | Mostly cloudy | 29°−2° (likely 29°−2° to 31°−1°) | 21°−6° | 0% | 8 mph13 km/h from ENE | 80% | — | — |
| Mon 1a | Mostly cloudy | 29°−2° (likely 29°−2° to 31°−1°) | 21°−6° | 0% | 8 mph13 km/h from ENE | 80% | — | — |
| Mon 2a | Mostly cloudy | 28°−2° (likely 28°−2° to 31°−1°) | 20°−7° | 0% | 8 mph13 km/h from ENE | 81% | — | — |
| Mon 3a | Mostly cloudy | 26°−3° (likely 26°−3° to 30°−1°) | 19°−7° | 0% | 6 mph10 km/h from ENE | 83% | — | — |
| Mon 4a | Mostly cloudy | 26°−3° (likely 26°−3° to 29°−2°) | 19°−7° | 0% | 6 mph10 km/h from ENE | 86% | — | — |
| Mon 5a | Mostly cloudy | 25°−4° (likely 25°−4° to 29°−2°) | 18°−8° | 0% | 6 mph10 km/h from ENE | 87% | — | — |
| Mon 6a | Mostly cloudy | 24°−4° (likely 24°−4° to 28°−2°) | 17°−8° | 0% | 6 mph10 km/h from E | 89% | — | — |
| Mon 7a | Mostly cloudy | 25°−4° (likely 25°−4° to 25°−4°) | 18°−8° | 0% | 6 mph10 km/h from E | 91% | — | — |
| Mon 8a | Mostly cloudy | 27°−3° (likely 27°−3° to 27°−3°) | 20°−7° | 0% | 6 mph10 km/h from E | 93% | — | — |
| Mon 9a | Mostly cloudy | 29°−2° (likely 29°−2° to 29°−2°) | 22°−6° | 0% | 7 mph11 km/h from E | 93% | — | — |
| Mon 10a | Mostly cloudy | 33°1° (likely 33°1° to 33°1°) | 27°−3° | 0% | 7 mph11 km/h from E | 88% | — | — |
| Mon 11a | Mostly cloudy | 38°3° (likely 38°3° to 38°3°) | 33°1° | 0% | 7 mph11 km/h from E | 80% | — | — |
| Mon 12p | Mostly cloudy | 43°6° (likely 43°6° to 43°6°) | 37°3° | 0% | 12 mph19 km/h from SE | 72% | — | — |
| Mon 1p | Mostly cloudy | 46°8° (likely 46°8° to 46°8°) | 41°5° | 0% | 12 mph19 km/h from SE | 66% | — | — |
| Mon 2p | Mostly cloudy | 47°8° (likely 47°8° to 47°8°) | 42°6° | 0% | 12 mph19 km/h from SE | 61% | — | — |
| Mon 3p | Mostly cloudy | 48°9° (likely 48°9° to 48°9°) | 43°6° | 0% | 13 mph21 km/h from SE | 59% | — | — |
| Mon 4p | Mostly cloudy | 48°9° (likely 48°9° to 48°9°) | 43°6° | 0% | 13 mph21 km/h from SE | 60% | — | — |
| Mon 5p | Mostly cloudy | 47°8° (likely 47°8° to 47°8°) | 41°5° | 0% | 13 mph21 km/h from SE | 63% | — | — |
Days ahead
Shaded: typical range for these dates (1991–2020)
Today, Oct 24. Mostly cloudy. High 0°−18°, low 24°−4°. Typical 52°11° / 23°−5°. Dry. One forecast only.
Evening
6 PM–midnight
Mostly cloudy, 34°1°Dry
Overnight
midnight–6 AM
Partly cloudy, 26°−3°Dry
Official NWS forecast
Tonight: Mostly cloudy, with a low around 24. East northeast wind 6 to 13 mph, with gusts as high as 22 mph.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 0°−18°
- Low, likely
- 24°−4°
- Typical high / low
- 52°11° / 23°−5°
- Wind
- —
Tomorrow, Oct 25. Partly sunny. High 45°7°, low 23°−5°. Typical 52°11° / 23°−5°. Dry. One forecast only.
Morning
6 AM–noon
Partly sunny, 24°−4°Dry
Afternoon
noon–6 PM
Partly sunny, 45°7°Dry
Evening
6 PM–midnight
Mostly cloudy, 34°1°Dry
Overnight
midnight–6 AM
Mostly cloudy, 25°−4°Dry
Official NWS forecast
Day: Mostly sunny, with a high near 45. East northeast wind around 13 mph, with gusts as high as 21 mph.
Night: Mostly cloudy, with a low around 23. East northeast wind 6 to 10 mph, with gusts as high as 18 mph.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 40°4°–45°7°
- Low, likely
- 23°−5°–27°−3°
- Typical high / low
- 52°11° / 23°−5°
- Wind
- 13 mph21 km/h
Monday, Oct 26. Mostly cloudy. High 48°9°, low 27°−3°. Typical 51°11° / 22°−6°. Dry. One forecast only.
Morning
6 AM–noon
Mostly cloudy, 27°−3°Dry
Afternoon
noon–6 PM
Mostly cloudy, 48°9°Dry
Official NWS forecast
Day: Partly sunny, with a high near 48. East southeast wind 6 to 13 mph, with gusts as high as 21 mph.
Night: Mostly cloudy, with a low around 27. East wind 3 to 8 mph.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 41°5°–48°9°
- Low, likely
- 27°−3°–28°−2°
- Typical high / low
- 51°11° / 22°−6°
- Wind
- 9 mph15 km/h
Tuesday, Oct 27. Snow. High 50°10°, low 27°−3°. Typical 50°10° / 22°−6°. Snow 0.11 in2.8 mm, 30% chance. One forecast only.
Official NWS forecast
Day: A chance of rain and snow. Mostly cloudy, with a high near 50. South southwest wind 2 to 12 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Night: A slight chance of rain. Mostly cloudy, with a low around 27. West wind 7 to 13 mph, with gusts as high as 20 mph.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 46°8°–50°10°
- Low, likely
- 27°−3°–33°1°
- Typical high / low
- 50°10° / 22°−6°
- Wind
- 13 mph20 km/h
Wednesday, Oct 28. Mostly cloudy. High 48°9°, low 23°−5°. Typical 50°10° / 22°−6°. Dry. One forecast only.
Official NWS forecast
Day: Partly sunny, with a high near 48. West northwest wind around 7 mph.
Night: Mostly cloudy, with a low around 23.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 47°8°–48°9°
- Low, likely
- 23°−5°–31°−1°
- Typical high / low
- 50°10° / 22°−6°
- Wind
- 9 mph14 km/h
Thursday, Oct 29. Mostly cloudy. High 41°5°, low 22°−6°. Typical 49°9° / 21°−6°. Dry. One forecast only.
Official NWS forecast
Day: Partly sunny, with a high near 41.
Night: A chance of snow. Mostly cloudy, with a low around 22. New snow accumulation of less than half an inch possible.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 35°2°–41°5°
- Low, likely
- 22°−6°–28°−2°
- Typical high / low
- 49°9° / 21°−6°
- Wind
- 9 mph14 km/h
Friday, Oct 30. Snow. High 41°5°, low 22°−6°. Typical 49°9° / 21°−6°. Snow 0.09 in2.3 mm, 40% chance. One forecast only.
Official NWS forecast
Day: A chance of snow before noon. Partly sunny, with a high near 41. New snow accumulation of less than half an inch possible.
Night: A chance of snow before 9pm, then a chance of rain and snow between 9pm and midnight. Mostly cloudy, with a low around 22. New snow accumulation of less than half an inch possible.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 33°1°–41°5°
- Low, likely
- 22°−6°–28°−2°
- Typical high / low
- 49°9° / 21°−6°
- Wind
- 9 mph14 km/h
Saturday, Oct 31. Mostly cloudy. High 44°7°, low 27°−3°. Typical 48°9° / 20°−7°. Dry. One forecast only.
Official NWS forecast
Day: Partly sunny, with a high near 44.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 36°2°–44°7°
- Low, likely
- 27°−3°
- Typical high / low
- 48°9° / 20°−7°
- Wind
- 8 mph13 km/h
The outlook
Today
Dry, high 0°, low 24°.
Tomorrow
Dry, high 45°, low 23°, warming up.
Monday
Dry, high 48°, low 27°, warming up.
Rest of week
Mostly dry, highs 41–50°.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (TFX) (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
Marias River near Chester
15 mi- Level
- 3.4 ft
- Flow
- 537 cfs
Reading from Sat 4:15 PM · NWS gauge page
For your home
What this week’s weather means for heating, cooling, pipes and fresh air.
Pipes: watch the cold
Tonight’s low: 24°−4°
Overnight low near 24°F — not yet at drip-the-faucets cold, but worth watching if it's forecast to drop further.
Heating this week
About 70% less heating than a typical week.
This week 61Typical 202
Heating degree days, base 65°F
Heat-pump hours, next 7 days
- h below 47°F
- 45
- h below 17°F
- 0
- h below 5°F
- 0
47, 17 and 5°F are the test points heat pumps are rated at. About 6 hours are near freezing and damp, when outdoor units defrost more often.
Comfort
Dry air outside (dew point 27°F).
Open the windows?
No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.
Is this typical?
Chester · official normals 1991–2020 · records 1900–2026
Oct 24, today vs a typical year
Today’s expected high is 52°29° colder than typical.
- Normal high / low
- 52°11° / 23°−5°
- Forecast high / low
- 0°−18° / 24°−4°
- Record high
- 75°24° in 1944
- Record low
- 6°−14° in 1951
Last 7 days vs normal
On average 11°6° warmer than normal (daily mean temperature).
- +6°+3°MonOct 19
- +9°+5°TueOct 20
- +12°+6°WedOct 21
- +12°+6°ThuOct 22
- +16°+9°FriOct 23
- —SatOct 24
- —SunOct 25
Chester weather by month: normals, records, snow and freeze dates
Sun & moon
Sun
Sunrise 7:57 AM, sunset 6:17 PM.
- Daylight
- 10 h 20 min
- Losing 3 min 22 s a day; shortest Dec 21, 2 h 2 min less
- Golden hour
- 5:33–6:37 PM
- Morning 7:38–8:42 AM
- Blue hour
- 6:37–6:49 PM
- Morning 7:25–7:38 AM; first light 7:25 AM
Stars tonight? Unknown
Cloud forecast not available for tonight.
Moon
Waxing gibbous
98% lit · growing
- Today
- sets 6:10 AM · rises 5:18 PM
- Full moon
- Oct 25
- New moon
- Nov 9
