Weather in Jefferson City, MT
Jefferson City, Sunday, 9 August, 07:26
Partly cloudy. Feels like 56°. High 87°, low 56°.
Monthly outlook for Jefferson City, MT: average high 86.7°, average low 60.9°. That is 4.6° above the climate normal for August. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 5 days and 1.0 inches. The warmest day looks like 24 August (96.5°), the coolest 10 August (51.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 82.4° | 79.1° | +1.9° |
| 19 August – 28 August | 93.7° | 77.1° | +9.2° |
| 29 August – 7 September | at normal | 74.5° | — |
August records over 66 years
0
Jefferson City, Monday, 10 August
Clear. High 88°, low 52°.
0Jefferson City, Tuesday, 11 August
Clear. High 90°, low 59°.
0.05
Jefferson City, Wednesday, 12 August
Light rain. High 84°, low 61°.
0.24Jefferson City, Thursday, 13 August
Rain. High 69°, low 52°.
0.2Jefferson City, Friday, 14 August
Light rain. High 74°, low 54°.
0.06Jefferson City, Saturday, 15 August
Light rain. High 79°, low 54°.
0.02Jefferson City, Sunday, 16 August
Light rain. High 85°, low 60°.
0
Jefferson City, Monday, 17 August
Overcast. High 83°, low 68°.
0Jefferson City, Tuesday, 18 August
Clear. High 86°, low 61°.
0Jefferson City, Wednesday, 19 August
Clear. High 89°, low 62°.
0Jefferson City, Thursday, 20 August
Overcast. High 94°, low 66°.
0Jefferson City, Friday, 21 August
Clear. High 92°, low 67°.
0Jefferson City, Saturday, 22 August
Clear. High 96°, low 64°.
0Jefferson City, Sunday, 23 August
Clear. High 95°, low 69°.
0Jefferson City, Monday, 24 August
Clear. High 97°, low 69°.
0.03Jefferson City, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.04
Jefferson City, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.04Jefferson City, Thursday, 27 August
Climate normal for this date — 60-year average.
0.07Jefferson City, Friday, 28 August
Climate normal for this date — 60-year average.
0.03Jefferson City, Saturday, 29 August
Climate normal for this date — 60-year average.
0.06Jefferson City, Sunday, 30 August
Climate normal for this date — 60-year average.
0.06Jefferson City, Monday, 31 August
Climate normal for this date — 60-year average.
0.06Jefferson City, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.04Jefferson City, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.03Jefferson City, Thursday, 3 September
Climate normal for this date — 60-year average.
0.05Jefferson City, Friday, 4 September
Climate normal for this date — 60-year average.
0.06Jefferson City, Saturday, 5 September
Climate normal for this date — 60-year average.
0.06Jefferson City, Sunday, 6 September
Climate normal for this date — 60-year average.
0.06Jefferson City, Monday, 7 September
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Jefferson City, MT are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Jefferson City, MT since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
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