Siskiyou County Airport (SIY) 15 Day Weather Forecast, Montague United States
Current weather conditions and 15 day weather forecast for Siskiyou County Airport in Montague, United States including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at SIY
| 11 January 2026 Sun -1.1 ° C ( 30°F )  Partly cloudy |
Feels Like : -2.1 ° C / 28.3°F Humidity : % 96 Pressure : 1035 mb Wind Speed : 3.6 kmph / 2.2 miles from NW 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 50 |
15-day weather forecast for Siskiyou County Airport, Montague, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 11 January 2026 Sun |  Sunny |
-2.9 ° C | 11.2 ° C | 2 ° C | % 72 | 2.9 km/h | 0% |
| 12 January 2026 Mon | Partly Cloudy |
-4.2 ° C | 12 ° C | 2.4 ° C | % 72 | 3.2 km/h | 0% |
| 13 January 2026 Tue | Sunny |
-0.5 ° C | 13.7 ° C | 4.8 ° C | % 62 | 2.5 km/h | 0% |
| 14 January 2026 Wed | Sunny |
1.1 ° C | 10.5 ° C | 4.3 ° C | % 67 | 3.6 km/h | 0% |
| 15 January 2026 Thu | Sunny |
0.9 ° C | 9.3 ° C | 3.9 ° C | % 67 | 3.2 km/h | 0% |
| 16 January 2026 Fri | Sunny |
0.1 ° C | 9.6 ° C | 4.1 ° C | % 57 | 4.7 km/h | 0% |
| 17 January 2026 Sat | Sunny |
-0.2 ° C | 9.2 ° C | 4 ° C | % 50 | 4.7 km/h | 0% |
| 18 January 2026 Sun | Sunny |
1.1 ° C | 9.6 ° C | 4.6 ° C | % 52 | 2.9 km/h | 0% |
| 19 January 2026 Mon | Sunny |
1.1 ° C | 9.1 ° C | 4.5 ° C | % 60 | 3.6 km/h | 0% |
| 20 January 2026 Tue | Sunny |
0.2 ° C | 8.7 ° C | 4 ° C | % 63 | 5.4 km/h | 0% |
| 21 January 2026 Wed | Sunny |
0 ° C | 7.3 ° C | 3.6 ° C | % 71 | 4.7 km/h | 0% |
| 22 January 2026 Thu |  Patchy rain nearby |
2.4 ° C | 4.6 ° C | 3.1 ° C | % 89 | 8.6 km/h | 88% |
| 23 January 2026 Fri |  Light freezing rain |
-3.7 ° C | 1.3 ° C | -1.6 ° C | % 72 | 7.6 km/h | 0% |
| 24 January 2026 Sat |  Moderate snow |
-3.9 ° C | 2.7 ° C | -1.5 ° C | % 77 | 27.7 km/h | 73% |
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